When buying a scarifier, pay attention to power, working width and depth setting. An electric scarifier is ideal for small to medium-sized gardens, while a gasoline scarifier performs better on large areas or heavier moss. Preferably choose a model with a collection tray to save time when cleaning up. The blades of the scarifier should cut only a few millimeters deep to aerate the lawn without damaging the grass. Compare well before buying a scarifier to be sure of the best scarifier for your garden. With the STIHL lawn aerators and scarifiers, you can effectively remove weeds and thatched grass. This gives your lawns light and air to grow fast and dense.